| Sydkraft Polen Aktiebolag CVR 5565275236 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| OptiGroup Nordic AB CVR 5566852280 | BoardBoard of Directors | Since 2025 | — | Active |
| OptiGroup AB CVR 5567176135 | BoardBoard of Directors | Since 2025 | — | Active |
| Papyrus AB CVR 5567341630 | BoardBoard of Directors | Since 2025 | — | Active |
| Pyramidion Consulting AB CVR 5567342554 | BoardBoard of Directors | Since 2025 | — | Active |
| Molndala Invest AB CVR 5569306250 | BoardBoard of Directors | Since 2025 | — | Active |
| Kronogaard Invest AB CVR 5569308975 | BoardBoard of Directors | Since 2025 | — | Active |
| Forsaker Invest AB CVR 5590773445 | BoardBoard of Directors | Since 2025 | — | Active |
| OptiGroup Packaging AB CVR 5591388888 | BoardBoard of Directors | Since 2025 | — | Active |
| Hulelyckan Invest AB CVR 5591471817 | BoardBoard of Directors | Since 2025 | — | Active |
| OptiGroup BidCo AB CVR 5593497315 | OtherExternal Signatory | Since 2025 | — | Active |
| OptiGroup Holding AB CVR 5593509390 | OtherExternal Signatory | Since 2025 | — | Active |
| OptiGroup MidCo AB CVR 5593509408 | OtherExternal Signatory | Since 2025 | — | Active |
| Hoffmann Advisory AB CVR 5594878430 | BoardBoard of Directors | Since 2024 | — | Active |